How to write my harvest with a calculator in the fourth grade of Jiangsu Education Edition?

Every student has his own calculator, and I am no exception. But my calculator is different from that of other students. Why? Look down and you will know.

Today, the teacher assigned a bunch of problems calculated with a calculator. When I got home, I began to rummage through the closet. What are you looking for? Calculator! I searched for more than two hours and finally found it in a small picture book. I put it in the smallest pocket of my clothes, and then I went to find another needle. You must ask, why are you looking for a needle? Press the number keys! I found a needle, put my little finger in my pocket to get my calculator, then poked it open and started my homework.

Fortunately, I am very familiar with this calculator and know the location of each key; If someone else is holding a 800-degree convex lens (technical term, commonly known as a magnifying glass), it will take half a day to find a "+")

It took me an hour to finish my homework and start packing my schoolbag. I remember that the teacher asked me to bring the calculator tomorrow, so I carefully wrapped the calculator in paper and stuffed it into my schoolbag.

The next morning, the teacher told us to take out the calculator, but as soon as I put it on the table, my deskmate thought it was waste paper and threw it on the floor for me. This is terrible! I lost my calculator! I quickly reported to the teacher, and the teacher mobilized the whole class to look for it (the deskmate was the most active, because he dropped it, just taking this opportunity to "make amends", otherwise don't blame you for being merciless). Looking for a class, finally-"Teacher, I found Xie Qiuming's calculator." A classmate sitting in the corner with high myopia glasses raised his hand. Great! But the calculator is broken and the deskmate is miserable.

It seems that my "ultra-small" calculator is going to the museum.